kosmos/lndhub
8
0
Fork 0
Code Issues Pull Requests Releases Activity

FIX: added some caching; skip checking old invoices

Browse Source
This commit is contained in:
Overtorment 2019-12-14 19:24:14 +00:00
parent 3af9cda96d
commit daeae3c72d
1 changed files with 27 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
class/User.js
View File

@ -4,6 +4,11 @@ var crypto = require('crypto');
var lightningPayReq = require('bolt11');
import { BigNumber } from 'bignumber.js';
// static cache:
let _invoice_ispaid_cache = {};
let _listtransactions_cache = false;
let _listtransactions_cache_expiry_ts = 0;
export class User {
/**
*
@ -244,18 +249,22 @@ export class User {
invoice.payment_hash = tag.data;
}
}
invoice.ispaid = !!(await this.getPaymentHashPaid(invoice.payment_hash));
invoice.ispaid = _invoice_ispaid_cache[invoice.payment_hash] || !!(await this.getPaymentHashPaid(invoice.payment_hash));
if (!invoice.ispaid) {
// TODO: check if expired
// attempting to lookup invoice
if (decoded && decoded.timestamp > ((+new Date()) / 1000 - 3600 * 24 * 5)) {
// if invoice is not too old we query lnd to find out if its paid
let lookup_info = await this.lookupInvoice(invoice.payment_hash);
invoice.ispaid = lookup_info.settled;
invoice.ispaid = lookup_info.settled; // TODO: start using `state` instead as its future proof, and this one might get deprecated
if (invoice.ispaid) {
// so invoice was paid after all
await this.setPaymentHashPaid(invoice.payment_hash);
await this.clearBalanceCache();
}
}
} else {
_invoice_ispaid_cache[invoice.payment_hash] = true;
}
invoice.amt = decoded.satoshis;
invoice.expire_time = 3600;
@ -333,12 +342,15 @@ export class User {
* @private
*/
async _listtransactions() {
const key = 'listtransactions';
let response = await this._redis.get(key);
let response = _listtransactions_cache;
if (response) {
if (+new Date() > _listtransactions_cache_expiry_ts) {
// invalidate cache
response = _listtransactions_cache = false;
}
try {
let json = JSON.parse(response);
return json;
return JSON.parse(response);
} catch (_) {
// nop
}
@ -356,8 +368,8 @@ export class User {
time: tx.time,
});
}
await this._redis.set(key, JSON.stringify(ret));
await this._redis.expire(key, 5 * 60);
_listtransactions_cache = JSON.stringify(ret);
_listtransactions_cache_expiry_ts = +new Date() + 5 * 60 * 1000; // 5 min
return ret;
}